Light-emitting device package and electronic device

ABSTRACT

Embodiments of the present disclosure relate to a light-emitting device package and an electronic device. In an embodiment, a light-emitting device package is provided that includes a lead frame, at least two light-emitting devices mounted on the lead frame and configured to emit different wavelengths of a same color of light, and a phosphor configured to emit light having a color different from the color of light emitted from the at least two light-emitting devices. The embodiments of the present disclosure also relate to an electronic device including the light-emitting device package as a light source. According to the embodiments of the present disclosure, various expressible color spaces can be selectively expressed.

CROSS REFERENCE TO RELATED APPLICATION

This application claims priority from Korean Patent Application No.10-2017-0143437, filed on Oct. 31, 2017, which is hereby incorporated byreference for all purposes as if fully set forth herein.

BACKGROUND Technical Field

The present disclosure relates to a light-emitting device package and anelectronic device.

Description of the Related Art

Currently, a display device utilizes, as a light source, alight-emitting device package including a light-emitting device such asa Light-Emitting Diode (LED) and at least one type of phosphor.

The phosphor used in such a conventional light-emitting device packagehas a light emission spectrum characteristic, which is wider than awavelength band corresponding to a color to be expressed by the phosphoritself. As a result, there is a limitation in defining a color space tobe expressed.

In addition, since the conventional light-emitting device package emitslight with a single visible light wavelength spectrum according to anelectrical current introduced thereinto, the light-emitting devicepackage is only able to express one color space.

Meanwhile, demand for various color spaces is increasing. However, inorder to implement various color spaces in an electronic device such asa display device, different light-emitting device packages suited tocolor spaces to be expressed are separately required.

BRIEF SUMMARY

In view of the foregoing, an aspect of embodiments of the presentdisclosure is to provide a light-emitting device package and anelectronic device capable of expressing various color spaces.

Another aspect of embodiments of the present disclosure is to provide alight-emitting device package and an electronic device capable ofselecting one of various expressible color spaces and expressing theselected color space.

Still another aspect of embodiments of the present disclosure is toprovide a light-emitting device package and an electronic device capableof adaptively controlling an expressible color space in accordance witha user's demand or a display situation.

In one or more embodiments of the present disclosure, a light-emittingdevice package is provided including a lead frame, at least twolight-emitting devices mounted on the lead frame and configured to emitdifferent wavelengths of a same color of light, and a phosphorconfigured to emit light having a color different from the color oflight emitted from the at least two light-emitting devices.

In such a light-emitting device package, the two or more light-emittingdevices emit lights having the same color and different wavelengths.

In one or more embodiments, the present disclosure provides alight-emitting device package including a lead frame, a firstlight-emitting device mounted on the lead frame, a second light-emittingdevice mounted on the lead frame, a third light-emitting device mountedon the lead frame, a fourth light-emitting device mounted on the leadframe, and a phosphor contained in an encapsulant present on the first,second, third, and fourth light-emitting devices.

In such a light-emitting device package, the phosphor may emit a firstcolor light, the first light-emitting device and the secondlight-emitting device may emit second color lights, and the thirdlight-emitting device and the fourth light-emitting device may emitthird color lights.

The first light-emitting device may emit second color lights havingdifferent wavelengths.

The lead frame may include a first lead frame on which the firstlight-emitting device is mounted, a second lead frame on which thesecond light-emitting device is mounted, a third lead frame on which thethird light-emitting device is mounted, a fourth lead frame on which thefourth light-emitting device is mounted.

An insulator may be disposed between the first, second, third, andfourth lead frames.

The wavelength of the second color light emitted from the firstlight-emitting device may be shorter than the wavelength of the secondcolor light emitted from the second light-emitting device.

In such a light-emitting device package, the first light-emitting deviceand the third light-emitting device may constitute a first internallight-emitting device package, and the second light-emitting device andthe fourth light-emitting device may constitute a second internallight-emitting device package.

The light-emitting device package may further include a partition walllocated between the first and second internal light-emitting devicepackages.

When a partition wall structure exists, the phosphor may include a firstphosphor existing in a region of the first internal light-emittingdevice package and a second phosphor existing in a region of the secondinternal light-emitting device package.

The first phosphor and the second phosphor may emit first color lightshaving different wavelengths.

The wavelength of the second color light emitted from the secondlight-emitting device may be longer than the wavelength of the secondcolor light emitted from the first light-emitting device.

The wavelength of the first color light emitted from the second phosphormay be longer than the wavelength of the first color light emitted fromthe first phosphor.

The wavelength bandwidth of the first color light emitted from thesecond phosphor may be narrower than the wavelength bandwidth of thefirst color light emitted from the first phosphor.

The third light-emitting device and the fourth light-emitting device mayemit third color lights having the same wavelength.

The third light-emitting device and the fourth light-emitting device mayemit third color lights having different wavelengths.

In one or more embodiments, the present disclosure provides anelectronic device including a light-emitting device package configuredto output white light, and a driver configured to drive thelight-emitting device package.

The light-emitting device package may include a lead frame, a firstlight-emitting device mounted on the lead frame, a second light-emittingdevice mounted on the lead frame, a third light-emitting device mountedon the lead frame, a fourth light-emitting device mounted on the leadframe, and a phosphor contained in an encapsulant present on the first,second, third, and fourth light-emitting devices.

The controller may control whether to drive each of the firstlight-emitting device and the second light-emitting device according touser setting information or content information.

According to the embodiments of the present disclosure described herein,it is possible to provide a light-emitting device package and anelectronic device capable of expressing various color spaces.

According to the embodiments of the present disclosure, it is possibleto provide a light-emitting device package and an electronic devicecapable of selecting one of various expressible color spaces andexpressing the selected color space.

According to the embodiments of the present disclosure, it is possibleto provide a light-emitting device package and an electronic devicecapable of adaptively controlling an expressible color space inaccordance with a user's demand or a display situation.

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS

The above and other aspects, features and advantages of the presentdisclosure will be more apparent from the following detailed descriptiontaken in conjunction with the accompanying drawings, in which:

FIG. 1 is a diagram illustrating a light-emitting device packageaccording to embodiments of the present disclosure;

FIG. 2 is a diagram illustrating a light emission spectrum of thelight-emitting device package according to embodiments of the presentdisclosure;

FIG. 3 is a diagram illustrating a top view of two types of internallight-emitting device packages of the light-emitting device packageaccording to embodiments of the present disclosure;

FIG. 4 is a diagram illustrating a structure of a lead frame of thelight-emitting device package according to embodiments of the presentdisclosure;

FIG. 5 is a diagram illustrating a voltage application structure of thelight-emitting device package according to embodiments of the presentdisclosure;

FIGS. 6, 7, and 8 are diagrams illustrating a front view, a left sideview, and a right side view, respectively, of the light-emitting devicepackage shown in FIG. 3 according to embodiments of the presentdisclosure;

FIG. 9 is a diagram illustrating a light emission spectrum when a firstinternal light-emitting device package of the light-emitting devicepackage according to embodiments of the present disclosure is driven;

FIG. 10 is a diagram illustrating a light emission spectrum when asecond internal light-emitting device package of the light-emittingdevice package according to embodiments of the present disclosure isdriven;

FIG. 11 is a diagram illustrating a light emission spectrum when thefirst internal light-emitting device package and the second internallight-emitting device package of the light-emitting device packageaccording to embodiments of the present disclosure are driven;

FIG. 12 is a diagram illustrating various color spaces of thelight-emitting device package according to embodiments of the presentdisclosure;

FIG. 13 is a diagram illustrating another light emission spectrum of thelight-emitting device package according to embodiments of the presentdisclosure;

FIG. 14 is a diagram illustrating a top view of a light-emitting devicepackage having a partition structure according to embodiments of thepresent disclosure;

FIGS. 15, 16, and 17 are diagrams illustrating a front view, a left sideview, and a right side view, respectively, of the light-emitting devicepackage having the partition structure shown in FIG. 14 according toembodiments of the present disclosure;

FIG. 18 is a diagram illustrating a light emission spectrum of thelight-emitting device package having the partition structure accordingto embodiments of the present disclosure;

FIG. 19 is a diagram illustrating a light emission spectrum when a firstinternal light-emitting device package of the light-emitting devicepackage having the partition structure according to embodiments of thepresent disclosure is driven;

FIG. 20 is a diagram illustrating a light emission spectrum when asecond internal light-emitting device package of the light-emittingdevice package having the partition structure according to embodimentsof the present disclosure is driven;

FIG. 21 is a diagram illustrating a light emission spectrum when thefirst internal light-emitting device package and the second internallight-emitting device package of the light-emitting device packagehaving the partition structure according to embodiments of the presentdisclosure are driven;

FIG. 22 is a diagram illustrating another light emission spectrum of thelight-emitting device package having the partition structure accordingto embodiments of the present disclosure;

FIG. 23 is a diagram illustrating another arrangement structure oflight-emitting devices in the light-emitting device package according toembodiments of the present disclosure;

FIG. 24 is a diagram illustrating a light-emitting device arrayaccording to embodiments of the present disclosure;

FIG. 25 is a diagram illustrating a display device having an edge-typebacklight unit utilizing a light-emitting device package according toembodiments of the present disclosure;

FIG. 26 is a diagram illustrating a display device having a direct-typebacklight unit utilizing a light-emitting device package according toembodiments of the present disclosure;

FIG. 27 is a diagram illustrating driving circuit configurations of alight-emitting device package in the display device according toembodiments of the present disclosure;

FIGS. 28 to 30 are diagrams illustrating three types of modes of thedisplay device according to embodiments of the present disclosure; and

FIG. 31 is a diagram illustrating a lighting device according toembodiments of the present disclosure.

DETAILED DESCRIPTION

Hereinafter, some embodiments of the present disclosure will bedescribed in detail with reference to the accompanying illustrativedrawings. In designating elements of the drawings by reference numerals,the same elements will be designated by the same reference numeralsalthough they are shown in different drawings. Further, in the followingdescription of the present disclosure, a detailed description of knownfunctions and configurations incorporated herein will be omitted when itmay make the subject matter of the present disclosure rather unclear.

In addition, terms, such as first, second, A, B, (a), (b) or the likemay be used herein when describing components of the present disclosure.Each of these terminologies is not used to define an essence, order orsequence of a corresponding component but used merely to distinguish thecorresponding component from other component(s). In the case that it isdescribed that a certain structural element “is connected to”, “iscoupled to”, or “is in contact with” another structural element, itshould be interpreted that another structural element may “be connectedto”, “be coupled to”, or “be in contact with” the structural elements aswell as that the certain structural element is directly connected to oris in direct contact with another structural element.

First, a basic structure of a light-emitting device package according tothe present disclosure will be briefly described, and then alight-emitting device package according to embodiments of the presentdisclosure will be described with reference to the drawings.

A light-emitting device package according to the present disclosure mayinclude a lead frame LF, two or more light-emitting devices (e.g., LED 1and LED2 in FIG. 1) mounted on the lead frame LF and configured to emitcolor lights having the same color (e.g., color lights having any one ofred, green, and blue color), and at least one type of phosphor foremitting a color light having a color different from that of the colorlights emitted from the two or more light-emitting devices (e.g., LED1and LED2 in FIG. 1).

In the light-emitting device package according to the presentdisclosure, even if the two or more light-emitting devices (e.g., LED1and LED2 in FIG. 1) emit color lights having the same color, the two ormore light-emitting devices may emit color lights having differentwavelengths (e.g., a green light having a relatively short wavelengthand a green light having a long wavelength).

In an example, the light-emitting device package according to thepresent disclosure may include two green light-emitting devicesconfigured to emit green light of different wavelengths, red phosphorfor emitting red light, and blue phosphor for emitting blue light,thereby emitting white light. That is, the light-emitting device packageemits white light, e.g., by a combination of the emitted green light,red light, and blue light.

In another example, the light-emitting device package according to thepresent disclosure may include two green light-emitting devicesconfigured to emit green light of different wavelengths, two bluelight-emitting devices configured to emit blue light of the samewavelength, and red phosphor for emitting red light, thereby emittingwhite light.

In still another example, the light-emitting device package according tothe present disclosure may include two green light-emitting devicesconfigured to emit green light of different wavelengths, two bluelight-emitting devices configured to emit blue light of the samewavelength, and two types of red phosphor for emitting red light ofdifferent wavelengths, thereby emitting white light.

In still another example, the light-emitting device package according tothe present disclosure may include two green light-emitting devicesconfigured to emit green light of different wavelengths, two bluelight-emitting devices configured to emit blue light of differentwavelengths, and red phosphor for emitting red light, thereby emittingwhite light.

In still another example, the light-emitting device package according tothe present disclosure may include two green light-emitting devicesconfigured to emit green light of different wavelengths, two bluelight-emitting devices configured to emit blue light of differentwavelengths, and two types of red phosphor for emitting red light ofdifferent wavelengths, thereby emitting white light.

By using the light-emitting device package according to the presentdisclosure, the characteristics of a white light source can beremarkably improved. Accordingly, it is possible to express variouscolor spaces using a single light-emitting device package.

Hereinafter, a light-emitting device package according to the presentdisclosure briefly described above will be described by way of anexample with reference to the drawings.

FIG. 1 is a diagram illustrating a light-emitting device package LED-PKGaccording to embodiments of the present disclosure.

Referring to FIG. 1, a light-emitting device package LED-PKG accordingto embodiments of the present disclosure may include a lead frame LF, afirst light-emitting device LED1 mounted on the lead frame LF, a secondlight-emitting device LED2 mounted on the lead frame LF, a thirdlight-emitting device LED3 mounted on the lead frame LF, a fourthlight-emitting device LED4 mounted on the lead frame LF, and phosphorPSP contained in an encapsulant (ENCAP in FIG. 6) existing on the first,second, third, and fourth light-emitting devices LED1, LED2, LED3, andLED4.

The phosphor PSP may emit a first color light.

The first light-emitting device LED1 and the second light-emittingdevice LED2 may emit second color lights.

The third light-emitting device LED3 and the fourth light-emittingdevice LED4 may emit third color lights.

The phosphor PSP may emit the first color light by absorbing energy fromthe second color lights emitted from the first light-emitting deviceLED1 and the second light-emitting device LED2 and the third colorlights emitted from the third light-emitting device LED3 and the fourthlight-emitting device LED4.

The first color light, the second color light, and the third color lightmay be the lights having different colors. For example, the first colorlight, the second color light, and the third color light may be lightscorresponding the three primary colors, respectively.

Meanwhile, in the light-emitting device package LED-PKG according to theembodiments of the present disclosure, the first light-emitting deviceLED1 and the second light-emitting device LED2 may emit the second colorlights having different wavelengths within the wavelength band of thesecond color.

When the different light emission characteristics of the firstlight-emitting device LED1 and the second light-emitting device LED2 inthe light-emitting device package LED-PKG according to the embodimentsof the present disclosure are used, it is possible to dramaticallyimprove the characteristics of a white light source. Accordingly, it ispossible to express various color spaces using one light-emitting devicepackage LED-PKG.

FIG. 2 is a diagram illustrating a light emission spectrum of alight-emitting device package LED-PKG according to the embodiments ofthe present disclosure.

As described above, the phosphor PSP may emit the first color light, thefirst light-emitting device LED1 and the second light-emitting deviceLED2 may emit the second color lights, and the third light-emittingdevice LED3 and the fourth light-emitting device LED4 may emit the thirdcolor lights.

The first color light, the second color light, and the third color lightmay be lights having different colors.

The respective wavelength bands of the first color light, the secondcolor light, and the third color light may belong to the visible lightwavelength band and may be completely different from each other (e.g.,mutually exclusive bands) or partially overlap each other.

For example, the first color light has a wavelength band correspondingto highest wavelengths among the first, second, and third color lights(e.g., a red wavelength band), the second color light has a wavelengthband corresponding to the next highest wavelengths (e.g., a greenwavelength band), and the third color light has a wavelength bandcorresponding to the lowest or shortest wavelengths (e.g., a bluewavelength band). That is, the second color light may have a wavelengthband between the wavelength bands of the first color light and the thirdcolor light.

More specifically, as illustrated in FIG. 2, the first color lightemitted from the phosphor PSP may be red light, and may have awavelength belonging to, for example, a red wavelength band of about 600to 750 nm in a visible light wavelength band (about 380 to 750 nm). Thesecond color lights emitted from the first light-emitting device LED1and the second light-emitting device LED2 may be green light, and mayhave a wavelength belonging to, for example, a green wavelengthbandwidth of about 500 to 600 nm in the visible light wavelength band(about 380 to 750 nm). The third color lights emitted from the thirdlight-emitting device LED3 and the fourth light-emitting device LED4 maybe blue lights, and may have a wavelength belonging to, for example, ablue wavelength bandwidth of about 380 to 500 nm in the visible lightwavelength band (about 380 to 750 nm). Thus, as described herein, thewavelength bands of the red, green, and blue color lights may accountfor the entire visible light wavelength spectrum, i.e., wavelengths fromabout 380 to 750 nm. While the visible spectrum may include othercolors, such as orange, yellow, cyan, violet, it will be readilyappreciated that each of these colors has a spectrum that falls withinone or more of the red, green, and blue wavelengths bands as describedherein. For example, yellow light may sometimes be considered as visiblelight having a wavelength band of about 570 to 590 nm; however, asdescribed herein, yellow light within this wavelength band is consideredto be a part of the green wavelength band, which ranges from about 500to 600 nm.

According to the above description, it is possible to express variouscolor regions using green lights having different wavelengths.

Hereinafter, for the convenience of explanation, it is assumed that thefirst color light is a red light, the second color light is a greenlight, and the third color light is a blue light.

Meanwhile, referring to FIG. 2, in the light-emitting device packageLED-PKG according to the embodiments of the present disclosure, thewavelength of the second color light (e.g., green light) emitted fromthe first light-emitting device LED1 and the wavelength of the secondcolor light (e.g., green light) emitted from the second light-emittingdevice LED2 may be different from each other within the wavelength bandrange of the second color light (e.g., a green wavelength band range).

For example, as illustrated in FIG. 2, the wavelength of the secondcolor light emitted from the first light-emitting device LED1 may beshorter than the wavelength of the second color light emitted from thesecond light-emitting device LED2. The wavelengths bands of the secondcolor light (e.g., green light) that are emitted from the first andsecond light-emitting devices LED1, LED2 may partially overlap, as shownin FIG. 2.

As described above, by using the first and second light-emitting devicesLED1 and LED2 that emit green lights corresponding to the intermediatewavelength band between the red wavelength band and the blue wavelengthband with different wavelengths, it is possible to effectively expressvarious color regions.

Referring to FIG. 2, in the light-emitting device package LED-PKGaccording to the embodiments of the present disclosure, the thirdlight-emitting device LED3 and the fourth light-emitting device LED4 mayemit the third color lights having the same wavelength (e.g., bluelight). That is, as shown in FIG. 2, the band of wavelengths emittedfrom each of the third and fourth light-emitting devices LED3, LED4 maycompletely overlap, with both of the third and fourth light-emittingdevices LED3, LED4 emitting blue light of a same wavelength band.

According to this, by controlling only the driving of each of the firstand second light-emitting devices LED1 and LED2 that emit green lightshaving different wavelengths, it is possible to express various colorregions at low cost.

FIG. 3 is a diagram illustrating two types of internal light-emittingdevice packages IN-PKG1 and IN-PKG2 of the light-emitting device packageLED-PKG according to the embodiments of the present disclosure, FIG. 4is a diagram illustrating a structure of a lead frame LF of thelight-emitting device package LED-PKG according to the embodiments ofthe present disclosure, FIG. 5 is a diagram illustrating a voltageapplication structure of the light-emitting device package LED-PKGaccording to the embodiments of the present disclosure, and FIGS. 6, 7,and 8 are diagrams illustrating a front view, a left side view, and aright side view, respectively, of the light-emitting device packageLED-PKG shown in FIG. 3 according to the embodiments of the presentdisclosure.

As described above, in the light-emitting device package LED-PKGaccording to the embodiments of the present disclosure, the firstlight-emitting device LED1 and the second light-emitting device LED2 mayemit the second color lights having different wavelengths.

Accordingly, it can be said that the light-emitting device packageLED-PKG according to the embodiments of the present disclosure includesa first internal light-emitting device package IN-PKG1 including thefirst light-emitting device LED1, and a second internal light-emittingdevice package IN-PKG2 including the second light-emitting device LED2.

Referring to FIG. 3 and FIGS. 6 to 8, in the light-emitting devicepackage LED-PKG according to embodiments of the present disclosure, thefirst internal light-emitting device package IN-PKG1 may include a firstlight-emitting device LED 1 mounted on a first lead frame LF1 andconfigured to emit green light of a first green wavelength, a thirdlight-emitting device LED3 mounted on a third lead frame LF3 andconfigured to emit blue light, a phosphor PSP existing inside anencapsulation layer ENCAP and emitting red light.

Referring to FIG. 3 and FIGS. 6 to 8, in the light-emitting devicepackage LED-PKG according to embodiments of the present disclosure, thesecond internal light-emitting device package IN-PKG2 may include asecond light-emitting device LED 2 mounted on a second lead frame LF2and configured to emit green light of a second green wavelength which isdifferent from the first green wavelength, a fourth light-emittingdevice LED4 mounted on a fourth lead frame LF4 and configured to emitblue light, a phosphor PSP existing inside an encapsulation layer ENCAPand emitting red light.

Referring to FIG. 4, in the light-emitting device package LED-PKGaccording to the embodiments of the present disclosure, the lead frameLF may be divided into four lead frames LF1, LF2, LF3, and LF4. Forexample, the lead frame LF may be a single structure including fourelectrically isolated lead frame regions which may be considered as fourlead frames LF1, LF2, LF3, and LF4, or it may be composed of fourseparate lead frames (e.g., lead frames LF1, LF2, LF3, and LF4) that areconnected to each other.

According to this, the lead frame LF may include a first lead frame LF1on which the first light-emitting device LED1 is mounted, a second leadframe LF2 on which the second light-emitting device LED2 is mounted, athird lead frame LF3 on which the third light-emitting device LED3 ismounted, and a fourth lead frame LF4 on which the fourth light-emittingdevice LED4 is mounted.

In order to selectively control the driving each of the first, second,third, and fourth light-emitting devices LED1, LED2, LED3, and LED4, itmay be necessary to electrically separate the first, second, third, andfourth lead frames LF1, LF, LF3, LF3, and LF4 from each other.

For this purpose, for the electric separation of the first, second,third, and fourth lead frames LF1, LF2, LF3, and LF4, an insulator maybe located between each two adjacent lead frames among the first,second, third, and fourth lead frames LF1, LF2, LF3, and LF4.

According to the above-described lead frame structure, a driving circuitfor driving the light-emitting device package LED-PKG may independentlycontrol the driving of each of four light-emitting devices LED1, LED2,LED3, and LED4.

Referring to FIG. 5, the first light-emitting device LED1 and the thirdlight-emitting device LED3 included in the first internal light-emittingdevice package IN-PKG1 may be connected in series between a first anode(Anode 1) and a first cathode (Cathode 1).

In an example, one electrode of the first light-emitting device LED1 maybe connected to the first anode (Anode 1), another electrode of thefirst light-emitting device LED1 may be connected to one electrode ofthe third light-emitting device LED3, and another electrode of the thirdlight-emitting device LED3 may be connected to the first cathode(Cathode 1).

In another example, one electrode of the first light-emitting deviceLED1 may be connected to the first cathode (Cathode 1), anotherelectrode of the first light-emitting device LED1 may be connected toone electrode of the third light-emitting device LED3, and anotherelectrode of the third light-emitting device LED3 may be connected tothe first anode (Anode 1).

Referring to FIG. 5, the second light-emitting device LED2 and thefourth light-emitting device LED4 included in the second internallight-emitting device package IN-PKG2 may be connected in series betweena second anode (Anode 2) and a second cathode (Cathode 2).

In an example, one electrode of the second light-emitting device LED2may be connected to the second anode (Anode 2), another electrode of thesecond light-emitting device LED2 may be connected to one electrode ofthe fourth light-emitting device LED4, and another electrode of thefourth light-emitting device LED4 may be connected to the second cathode(Cathode 2).

In another example, one electrode of the second light-emitting deviceLED2 may be connected to the second cathode (Cathode 2), anotherelectrode of the second light-emitting device LED2 may be connected toone electrode of the fourth light-emitting device LED4, and anotherelectrode of the fourth light-emitting device LED4 may be connected tothe second anode (Anode 2).

As described above, by configuring the first and third light-emittingdevices LED1 and LED3 in the first internal light-emitting devicepackage IN-PKG1 of the light-emitting device package LED-PKG accordingto the embodiments of the present disclosure in a series circuit,constant current can be supplied to the first and third light-emittingdevices LED1 and LED3 during the driving of the first internallight-emitting device package IN-PKG1, so that the uniformity of lightemitted from the first internal light-emitting device package IN-PKG1can be improved.

In addition, by configuring the second and fourth light-emitting devicesLED2 and LED4 in the second internal light-emitting device packageIN-PKG2 of the light-emitting device package LED-PKG according to theembodiments of the present disclosure in a series circuit, constantcurrent can be supplied to the second and fourth light-emitting devicesLED2 and LED4 during the driving of the second internal light-emittingdevice package IN-PKG2, so that the uniformity of light emitted from thesecond internal light-emitting device package IN-PKG2 can be improved.

Meanwhile, in the light-emitting device package LED-PKG according to theembodiments of the present disclosure, different color spaces may be setaccording to a voltage applied to each of the first anode (Anode 1) andthe second anode (Anode 2).

Accordingly, it is possible to selectively express two or more colorspaces using a single light-emitting device package LED-PKG.

FIGS. 9 to 11 are diagrams illustrating light emission spectrums in thecase where one or more of the first internal light-emitting devicepackage IN-PKG1 and the second internal light-emitting device packageIN-PKG2 of the light-emitting device package LED-PKG according to theembodiments of the present disclosure are selectively driven. FIG. 12 isa diagram illustrating various color spaces in the case where one ormore of the first internal light-emitting device package IN-PKG1 and thesecond internal light-emitting device package IN-PKG2 of thelight-emitting device package LED-PKG according to the embodiments ofthe present disclosure are selectively driven.

In the light-emitting device package LED-PKG according to theembodiments of the present disclosure, one of two or more color spacesmay be selectively set according to a voltage applied to each of thefirst anode (Anode 1) and the second anode (Anode 2).

Referring to FIGS. 9 and 12, when an ON voltage is applied to the firstanode (Anode 1) and an OFF voltage is applied to the second anode (Anode2), only the first internal light-emitting device package IN-PKG1 isdriven (e.g. with the first and third light-emitting devices LED1, LED3emitting light), so that the first color space can be set in thelight-emitting device package LED-PKG.

Accordingly, the light-emitting device package LED-PKG may express acolor corresponding to the first color space through the first internallight-emitting device package IN-PKG1.

Referring to FIGS. 10 and 12, when an OFF voltage is applied to thefirst anode (Anode 1) and an ON voltage is applied to the second anode(Anode 2), only the second internal light-emitting device packageIN-PKG2 is driven (e.g. with the second and fourth light-emittingdevices LED2, LED4 emitting light), so that the second color space canbe set in the light-emitting device package LED-PKG.

Accordingly, the light-emitting device package LED-PKG may express acolor corresponding to the second color space through the secondinternal light-emitting device package IN-PKG2.

Referring to FIGS. 11 and 12, when an ON voltage is applied to the firstanode (Anode 1) and an ON voltage is applied to the second anode (Anode2), the first internal light-emitting device package IN-PKG1 and thesecond internal light-emitting device package IN-PKG2 are driven (e.g.with the first, second, third, and fourth light-emitting devices LED1,LED2, LED3, LED4 emitting light), so that the third color space can beset in the light-emitting device package LED-PKG.

Accordingly, the light-emitting device package LED-PKG may express acolor corresponding to the third color space using both of the firstinternal light-emitting device package IN-PKG1 and the second internallight-emitting device package IN-PKG2.

A color space described herein may mean a system capable of expressingcolors in three-dimensional coordinates. A color gamut, which is similarto a color space in concept, may mean a color region (a color range)created by an arbitrary purpose.

For example, it is a color space that has a coordinate system capable ofexpressing colors like, RGB, CMYK, XYZ.xyY, Lab, YCbCr, HSL, CIE1931,CIE1964, CIE1976, etc., and sRGB (standard RGB), Adobe RGB, ProphotoRGB, DCI-P3, Rec. 709, BT.2020, ACES, and NTSC correspond to colorgamuts.

Typically, a color space and a color gamut are used interchangeably, andherein, a color space may be understood as a color gamut.

A light-emitting device package LED-PKG according to the embodiments ofthe present disclosure may provide various types of color spaces (colorgamuts).

For example, a first color space provided by the light-emitting devicepackage LED-PKG according to the embodiments of the present disclosuremay be Adobe RGB, BT.2020, or the like, and may be suitable for aphotograph, printed matter, an advertisement, or the like.

For example, a second color space provided by the light-emitting devicepackage LED-PKG according to the embodiments of the present disclosuremay be DCI-P3, sRGB, or the like, and may be suitable for a movie,animation, a game content, or the like.

For example, the third color space provided by the light-emitting devicepackage LED-PKG according to the embodiments of the present disclosuremay be NTSC, DCI-P3, or the like, and may be suitable for a contentrequiring high brightness such as an HDR or a game content.

FIG. 13 is a diagram illustrating another light emission spectrum of thelight-emitting device package LED-PKG according to embodiments of thepresent disclosure.

Referring to FIG. 13, in the light-emitting device package LED-PKGaccording to the embodiments of the present disclosure, the thirdlight-emitting device LED3 and the fourth light-emitting device LED4 mayemit third color lights (e.g., blue lights) having differentwavelengths.

For example, the wavelength of the third color light emitted from thethird light-emitting device LED3 may be shorter than the wavelength ofthe third color light emitted from the fourth light-emitting deviceLED4. More particularly, the third light-emitting device LED3 may emitblue light within a first wavelength band of the blue light wavelengths,and the fourth light-emitting device LED4 may emit blue light within asecond wavelength band of the blue light wavelengths. While the firstand second wavelength bands of blue light emitted by the third andfourth light-emitting devices LED3, LED4, respectively, may partiallyoverlap, the first wavelength band of blue light emitted by the thirdlight-emitting diode LED3 generally corresponds to shorter wavelengthsof blue light than the second wavelength band of blue light emitted bythe fourth light-emitting diode LED4. That is, the first wavelength bandof light emitted by the third light-emitting diode LED3 is shifted tothe left relative to the second wavelength band of light emitted by thefourth light-emitting diode LED4 in the diagram of FIG. 13.

FIG. 14 is a diagram illustrating a light-emitting device packageLED-PKG having a partition wall PW structure according to embodiments ofthe present disclosure. FIGS. 15, 16, and 17 are diagrams illustrating afront view, a left side view, and a right side view, respectively, ofthe light-emitting device package LED-PKG having a partition wall PWstructure shown in FIG. 14 according to the embodiments of the presentdisclosure. FIG. 18 is a diagram illustrating a light emission spectrumof a light-emitting device package LED-PKG having a partition wall PWstructure according to embodiments of the present disclosure.

Referring to FIGS. 14 to 17, the light-emitting device package LED-PKGaccording to embodiments of the present disclosure may have a structurein which a partition wall PW is located between a first internallight-emitting device package IN-PKG1 including a first light-emittingdevice LED1 and a third light-emitting device LED3 and a second internallight-emitting device package IN-PKG2 including a second light-emittingdevice LED2 and a fourth light-emitting device LED4.

Accordingly, in the light-emitting device package LED-PKG according tothe embodiments of the present disclosure, the light-emittingcharacteristics of the first internal light-emitting device packageIN-PKG1 and the second internal light-emitting device package IN-PKG2can be effectively separated and selectively used due to the partitionwall structure.

As illustrated in FIGS. 14 to 17, the height of the partition wall PWmay be lower than the height of the encapsulant ENCAP.

The material forming the partition wall PW may be the same material asthe insulator INS, or may be made of a material which is the same as amold MD, which may be any molding compound or the like which forms asupporting body or structure for the package.

Meanwhile, referring to FIGS. 14 to 17, the phosphor PSP contained inthe encapsulant ENCAP of the light-emitting device package LED-PKGaccording to the embodiments of the present disclosure may include afirst phosphor PSP1 existing in the region of the first internallight-emitting device package IN-PKG1 and a second phosphor PSP2existing in the region of the second internal light-emitting devicepackage IN-PKG2. The first and second phosphors PSP1, PSP2 may beembedded and dispersed throughout respective regions of the encapsulantENCAP, for example, as particles having any suitable size and shape fordesired light emission characteristics.

The first phosphor PSP1 and the second phosphor PSP2 may emit firstcolor lights (e.g., red light) having the same wavelengthcharacteristic.

Alternatively, as illustrated in FIG. 18, the first phosphor PSP1 andthe second phosphor PSP2 may emit first color lights (e.g., red light)having different wavelengths.

According to this, by using the different light emission characteristicsof respective first and the second phosphors PSP1 and PSP2 in thelight-emitting device package LED-PKG according to the embodiments ofthe present disclosure, it is possible to further dramatically improvethe characteristics of a white light source. Accordingly, it is possibleto express more various color spaces using a single light-emittingdevice package.

FIGS. 19 to 21 are diagrams illustrating light emission spectrums in thecase where one or more of the first internal light-emitting devicepackage IN-PKG1 and the second internal light-emitting device packageIN-PKG2 of the light-emitting device package LED-PKG having a partitionwall PW structure according to the embodiments of the present disclosureare selectively driven.

Referring to FIG. 19, when an ON voltage is applied to the first anodeand an OFF voltage is applied to the second anode, so that only thefirst internal light-emitting device package IN-PKG1 is driven, thelight-emitting device package LED-PKG having the partition wall PWstructure may be configured such that the overall light emissionspectrum can be determined by the third light-emitting device LED3, thefirst light-emitting device LED1, and the first phosphor PSP1 that isprovided in the region of the first internal light-emitting devicepackage IN-PKG1.

Referring to FIG. 20, when an OFF voltage is applied to the first anodeand an ON voltage is applied to the second anode, so that only thesecond internal light-emitting device package IN-PKG2 is driven, thelight-emitting device package LED-PKG having the partition wall PWstructure may be configured such that the overall light emissionspectrum can be determined by the fourth light-emitting device LED4, thesecond light-emitting device LED2, and the second phosphor PSP2 that isprovided in the region of the second internal light-emitting devicepackage IN-PKG2.

The light emission spectrum in FIG. 19 differs from the light emissionspectrum in FIG. 20. Accordingly, different color spaces (or colorgamuts) can be expressed by the separate driving of the first internallight-emitting device package IN-PKG1 and the second internallight-emitting device package IN-PKG2.

In the case of FIG. 21, when an ON voltage is applied to both the firstanode and the second anode, so that both the first internallight-emitting device package IN-PKG1 and the second internallight-emitting device package IN-PKG2 are driven, the light-emittingdevice package LED-PKG having the partition wall PW structure accordingto the embodiments of the present disclosure may have a light emissionspectrum in which the light emission spectrum of FIG. 19 and the lightemission spectrum of FIG. 20 are mixed.

As described above, the wavelength of the second color light emittedfrom the second light-emitting device LED2 is longer than the wavelengthof the second color light emitted from the first light-emitting deviceLED1.

Meanwhile, referring to FIGS. 18 to 21, the wavelength of the firstcolor light emitted by the second phosphor PSP2 may be longer than thewavelength of the first color light emitted by the first phosphor PSP1.The wavelength bandwidth of the first color light emitted from thesecond phosphor PSP2 may be narrower than the wavelength bandwidth ofthe first color light emitted from the first phosphor PSP1.

In other words, the first phosphor PSP1 of the first internallight-emitting device package IN-PKG1 may emit the first color lighthaving a relatively short wavelength and wide wavelength band, and thesecond phosphor PSP2 of the second internal light-emitting devicepackage IN-PKG2 may emit the first color light having a relatively longwavelength and narrow wavelength band.

In this case, the first color light emitted from the second phosphorPSP2 may have a color tone deeper than that of the first color lightemitted from the first phosphor PSP1.

Therefore, the expressed first color (e.g., red) exhibits a lightercolor tone according to the driving of the first internal light-emittingdevice package IN-PKG1, and the first color (e.g., red) exhibits adeeper color tone according to the second internal light-emitting devicepackage IN-PKG2. Accordingly, by selectively driving the first internallight-emitting device package IN-PKG1 and the second internallight-emitting device package IN-PKG2, the light-emitting device packageLED-PKG according to the embodiments of the present disclosure maysatisfy the requirement or a desired range for the color tone of thefirst color.

FIG. 22 is a diagram illustrating another light emission spectrum of alight-emitting device package LED-PKG having a partition wall PWstructure according to embodiments of the present disclosure.

Referring to FIG. 22, in the light-emitting device package LED-PKGhaving a partition wall PW structure according to the embodiments of thepresent disclosure, the third light-emitting device LED3 and the fourthlight-emitting device LED4 may emit third color lights having differentwavelengths.

For example, the wavelength of the third color light emitted from thethird light-emitting device LED3 may be shorter than the wavelength ofthe third color light emitted from the fourth light-emitting deviceLED4.

When the different light emission characteristics of the thirdlight-emitting device LED3 and the fourth light-emitting device LED4 inthe light-emitting device package LED-PKG according to the embodimentsof the present disclosure are used, it is possible to furtherdramatically improve the characteristics of a white light source.Accordingly, it is possible to express more various color spaces using asingle light-emitting device package.

Meanwhile, the four light-emitting devices LED1, LED2, LED3, and LED4 inthe light-emitting device package LED-PKG according to the embodimentsof the present disclosure may be arranged in two rows and two columns asillustrated in FIGS. 1 and 3, and may be arranged in various other ways.An example thereof is illustrated in FIG. 23.

FIG. 23 is a diagram illustrating another arrangement structure of thefour light-emitting devices LED1, LED2, LED3, and LED4 in thelight-emitting device package LED-PKG according to the embodiments ofthe present disclosure.

Referring to FIG. 23, the four light-emitting devices LED1, LED2, LED3,and LED4 in the light-emitting device package LED-PKG according to theembodiments of the present disclosure may be arranged in a row.

As an example of the arrangement order of the four light-emittingdevices LED1, LED2, LED3, and LED4, the first light-emitting device LED1and the third light-emitting device LED3 included in the first internallight-emitting device package IN-PKG1 may be disposed adjacent to eachother. In addition, the second light-emitting device LED2 and the fourthlight-emitting device LED4 included in the second internallight-emitting device package IN-PKG2 may be disposed adjacent to eachother.

In the example of FIG. 23, the first, second, third, and fourth leadframes LF1, LF2, LF3, and LF4 included in the lead frame LF may beseparated from each other by an insulator INS with reference to the fourlight-emitting devices LED1, LED2, LED3, and LED4.

FIG. 24 is a diagram illustrating a light-emitting device arrayaccording to embodiments of the present disclosure.

Referring to FIG. 24, a light-emitting device array may be configuredusing a plurality of light-emitting device packages LED-PKG #1 toLED-PKG #6.

In the plurality of light-emitting device packages LED-PKG #1 to LED-PKG#6, a first anode (Anode 1), a first cathode (Cathode 1), a second anode(Anode 2), and a second cathode (Cathode 2) may be connected in series.

In this case, the first internal light-emitting device packages IN-PKG1,each included in one of the plurality of light-emitting device packagesLED-PKG #1 to LED-PKG #6, may be simultaneously driven, e.g., by acurrent between the first anode (Anode 1) and the first cathode(Cathode 1) which passes through the first internal light-emittingdevice packages IN-PKG1 of each of the plurality of light-emittingdevice packages LED-PKG #1 to LED-PKG #6. In this case, the secondinternal light-emitting device packages IN-PKG2, each included in one ofthe plurality of light-emitting device packages LED-PKG #1 to LED-PKG#6, may be simultaneously driven, e.g., by a current between the secondanode (Anode 2) and the second cathode (Cathode 2) which passes throughthe second internal light-emitting device packages IN-PKG2 of each ofthe plurality of light-emitting device packages LED-PKG #1 to LED-PKG#6.

According to the serial connection method of the plurality oflight-emitting device packages LED-PKG #1 to LED-PKG #6, the uniformityof the total light supplied by the light-emitting device array can beimproved.

The light-emitting device array in FIG. 24 may selectively switch thedriving of the first internal light-emitting device package IN-PKG1 andthe second internal light-emitting device package IN-PKG1 included ineach of the plurality of light-emitting device package LED-PKG #1 toLED-PKG #6.

Assuming, for example, that the first color light is a red light, thesecond color light is a green light, and the third color light is a bluelight, it can be said that the light-emitting device array in FIG. 24has a switchable Green Blue-red (GB-r) LED array structure.

The light-emitting device package LED-PKG according to the embodimentsof the present disclosure described above may be utilized as a lightsource of various electronic devices such as a display device and alighting device.

An electronic device according to the embodiments of the presentdisclosure may include a light-emitting device package LED-PKGconfigured to output white light and a driving unit configured to drivethe light-emitting device package LED-PKG.

Hereinafter, a display device 2500 and a lighting device 3100 will bebriefly described as an example of an electronic device utilizing thelight-emitting device package LED-PKG according to the embodiments ofthe present disclosure.

FIGS. 25 and 26 are diagrams illustrating a display device 2500according to embodiments of the present disclosure, and FIG. 27 is adiagram illustrating driving circuit components of the light-emittingdevice package LED-PKG in the display device 2500 according toembodiments of the present disclosure. FIGS. 28 to 30 are diagramsillustrating three types of modes of the display device 2500 accordingto embodiments of the present disclosure.

Referring to FIGS. 25 and 26, the display device 2500 according to theembodiments of the present disclosure may include a display panel 2520,a backlight unit 2510 disposed below the display panel 2520 to supplywhite light to the display panel 2520, and the like.

Referring to FIGS. 25 and 26, a light-emitting device package LED-PKGaccording to embodiments of the present disclosure may be a light sourceincluded in the backlight unit 2510.

Referring to FIG. 27, the display device 2500 according to embodimentsof the present disclosure may further include, for example, a drivingunit configured to drive a light-emitting device package LED-PKGincluded in a backlight unit 2510 as a light source and configured tooutput white light.

As illustrated in FIG. 25, the backlight unit 2510 may be of an edgetype in which the light source is located on a side (an edge portion) ofthe display panel 2520.

Here, the light source disposed on the side of the display panel 2520may be the light-emitting device package LED-PKG according to theembodiments of the present disclosure. As shown in FIG. 25, one or morelight-emitting device packages LED-PKG may be disposed on each ofopposing sides of a light guide plate 2511.

The edge-type backlight unit 2510 may include the light guide plate 2511disposed below the display panel 2520.

In addition, the edge-type backlight unit 2510 may include a reflectiveplate 2512 disposed under the light guide plate 2511. The reflectiveplate 2512 may be formed of a light reflective material and may reflectincident light toward the light guide plate 2511 and the display panel2520.

As illustrated in FIG. 26, the backlight unit 2510 may be of a directtype in which the light source is located below the display panel 2520.

Here, the light source disposed just below the display panel 2520 may beone or more of the light-emitting device packages LED-PKG according tothe embodiments of the present disclosure.

Referring to FIG. 27, the light-emitting device package LED-PKGconfigured to output white light as a light source in the backlight unit2520 in the display device 2500 according to the embodiments of thepresent disclosure is the same as that described above.

Briefly, a light-emitting device package LED-PKG serving as a lightsource in the backlight unit in the display device 2500 according toembodiments of the present disclosure may include a lead frame LF, afirst light-emitting device LED1 mounted on the lead frame LF, a secondlight-emitting device LED2 mounted on the frame LF, a thirdlight-emitting device LED3 mounted on the lead frame LF, a fourthlight-emitting device LED4 mounted on the lead frame LF, and phosphorPSP contained in an encapsulant (ENCAP in FIG. 6) existing on the first,second, third, and fourth light-emitting devices LED1, LED2, LED3, andLED4.

The phosphor PSP may emit a first color light.

The first light-emitting device LED1 and the second light-emittingdevice LED2 may emit second color lights.

The third light-emitting device LED3 and the fourth light-emittingdevice LED4 may emit third color lights.

The phosphor PSP may emit the first color light by absorbing energy fromthe second color lights emitted from the first light-emitting deviceLED1 and the second light-emitting device LED2 and the third colorlights emitted from the third light-emitting device LED3 and the fourthlight-emitting device LED4.

The first color light, the second color light, and the third color lightmay be the color lights having different colors. For example, the firstcolor light, the second color light, and the third color light may belights corresponding to the three primary colors, respectively.

Meanwhile, in the light-emitting device package LED-PKG according to theembodiments of the present disclosure, the first light-emitting deviceLED1 and the second light-emitting device LED2 may emit the second colorlights having different wavelengths within the wavelength band of thesecond color.

By using the display device 2500 according to the above-describedembodiments of the present disclosure, it is possible to dramaticallyimprove the characteristics of the white light source, so that variouscolor spaces can be expressed using only one type of light-emittingdevice package LED-PKG, the power of expression in colors can beincreased, and image quality can be greatly improved.

Referring to FIG. 27, the driving unit included in the display device2500 according to the embodiments of the present disclosure may includea first driving circuit DIC1 configured to drive the firstlight-emitting device LED1 in the light-emitting device package LED-PKG,a second driving circuit DIC2 configured to drive the secondlight-emitting device LED2 in the light-emitting device package LED-PKG,and a controller CTR configured to control whether to drive each of thefirst light-emitting device LED1 and the second light-emitting deviceLED2.

The first driving circuit DIC1 may drive not only the firstlight-emitting device LED1, but also the third light-emitting deviceLED3 included in the first internal light-emitting device packageIN-PKG1. The second driving circuit DIC2 may drive not only the secondlight-emitting device LED2, but also the fourth light-emitting deviceLED4 included in the second internal light-emitting device packageIN-PKG2.

The first driving circuit DIC1 and the second driving circuit DIC2described above may be separately configured or may be implemented in anintegrated form. For example, both the first driving circuit DIC1 andthe second driving circuit DIC2 may be implemented in a same integratedcircuit (IC), with the integrated circuit (IC) having separate outputsto each of the first and second internal light-emitting device packagesIN-PKG1, IN-PKG2.

According to the foregoing description, the display device 2500according to the embodiments of the present disclosure is capable ofexpressing colors of desired types of color spaces (color gamuts)variously by selectively switching the driving of the first internallight-emitting device package IN-PKG1 and the second internallight-emitting device package IN-PKG2 included in each light-emittingdevice package LED-PKG under any event situation or under any condition.

Referring to FIG. 27, the controller CTR may control whether to driveeach of the first light-emitting device LED1 and the secondlight-emitting device LED2 in each light-emitting device package LED-PKGaccording to user-setting information USER_SET_INFO or contentinformation CON_INFO.

Accordingly, the display device 2500 according to the embodiments of thepresent disclosure may be configured such that the color spaces (colorgamuts) may be manually changed according to the user-settinginformation USER_SET_INFO, or may be automatically changed according tothe content information CON_INFO. The user-setting informationUSER_SET_INFO may be, for example, information received from a userinput (e.g., by control of a selectable element, such as a button, dial,knob, touch input, remote controller input, or the like) indicative of adesired color setting. The content information CON_INFO may be, forexample, color information associated with received content, such asreceived image data, to be displayed on the display device 2500.

Depending on an amount of current supplied from each of the first,second, third, and fourth lead frames LF1, LF2, LF3, and LF4 to each ofthe first, second, third, and fourth light-emitting devices LED1, LED2,LED3, and LED4 by the operation of the first and second driving circuitsDIC1 and DIC2 according to the control of the controller CTR, the first,second, third, and fourth light-emitting devices LED1, LED2, LED3, andLED4 may have light emission properties (e.g., wavelengths and/orintensity of light) which are independent from each other.

For example, the wavelengths or intensity of light emitted from at leastone of the first, second, third, and fourth light-emitting devices LED1,LED2, LED3, and LED3 may be controlled differently by differentlycontrolling the amount of current supplied to at least one of the first,second, third, and fourth light-emitting devices LED1, LED2, LED3, andLED4.

Referring to FIGS. 28 to 30, the display device 2500 according to theembodiments of the present disclosure may operate in three modes (mode1, mode 2, and mode 3), for example. In some embodiments, the controllerCTR may selectively enter the display device 2500 into one of the threemodes (mode 1, mode 2, and mode 3), which may be based at least in parton one or both of the user-setting information USER_SET_INFO and thecontent information CON_INFO.

Referring to FIG. 28, in the case of operating in mode 1, the displaydevice 2500 according to the embodiments of the present disclosure mayprovide a third color space (which corresponds to the full color in FIG.28 and may be in an intermediate form of the first color space and thesecond color space) by driving, for example, both of the first internallight-emitting device package IN-PKG1 and the second internallight-emitting device package IN-PKG2 included in each light-emittingdevice package LED-PKG.

Here, for example, the first color space (which may also be referred toas a “first color gamut”) may be Adobe (which may also be referred to as“Adobe RGB”), and the second color space (which may also be referred toas a “second color gamut”) may be DCI-P3.

Referring to FIG. 29, in the case of operating in mode 2, the displaydevice 2500 according to the embodiments of the present disclosure mayprovide the first color space by driving, for example, the firstinternal light-emitting device package IN-PKG1 included in eachlight-emitting device package LED-PKG, but not driving the secondinternal light-emitting device package IN-PKG2 included in eachlight-emitting device package LED-PKG.

Here, for example, the first color space (which may be referred to as a“first color gamut”) may be Adobe (also referred to as “Adobe RGB”).

Referring to FIG. 30, in the case of operating in mode 3, the displaydevice 2500 according to the embodiments of the present disclosure mayprovide the second color space by driving, for example, the secondinternal light-emitting device package IN-PKG2 included in eachlight-emitting device package LED-PKG, but not driving the firstinternal light-emitting device package IN-PKG1 included in eachlight-emitting device package LED-PKG.

Here, for example, the second color space (which may be referred to as a“second color gamut”) may be DCI-P3.

FIG. 31 is a diagram illustrating a lighting device 3100 according toembodiments of the present disclosure.

A lighting device 3100 according to the embodiments of the presentdisclosure may include at least one light-emitting device packageLED-PKG configured to output white light and a driving unit (which maybe the same as that of FIG. 27) configured to drive the at least onelight-emitting device package LED-PKG.

According to the embodiments of the present disclosure disclosed above,it is possible to provide a light-emitting device package and anelectronic device capable of expressing various color spaces.

According to the embodiments of the present disclosure, it is possibleto provide a light-emitting device package and an electronic devicecapable of selecting one of various expressible color spaces andexpressing the selected color space.

According to the embodiments of the present disclosure, it is possibleto provide a light-emitting device package and an electronic devicecapable of adaptively controlling an expressible color space inaccordance with a user's demand or a display situation.

The above description and the accompanying drawings provide an exampleof the technical idea of the present disclosure for illustrativepurposes only. Those having ordinary knowledge in the technical field,to which the present disclosure pertains, will appreciate that variousmodifications and changes in form, such as combination, separation,substitution, and change of a configuration, are possible withoutdeparting from the essential features of the present disclosure.Therefore, the embodiments disclosed in the present disclosure areintended to illustrate the technical idea of the present disclosure, andthe scope of the present disclosure is not limited by the embodimentsprovided herein. The scope of the present disclosure shall be construedon the basis of the accompanying claims in such a manner that all of thetechnical ideas included within the scope equivalent to the claimsbelong to the present disclosure.

The various embodiments described above can be combined to providefurther embodiments. These and other changes can be made to theembodiments in light of the above-detailed description. In general, inthe following claims, the terms used should not be construed to limitthe claims to the specific embodiments disclosed in the specificationand the claims, but should be construed to include all possibleembodiments along with the full scope of equivalents to which suchclaims are entitled. Accordingly, the claims are not limited by thedisclosure.

1. A light-emitting device package comprising: a lead frame; a firstlight-emitting device mounted on the lead frame; a second light-emittingdevice mounted on the lead frame; a third light-emitting device mountedon the lead frame; a fourth light-emitting device mounted on the leadframe; and a phosphor contained in an encapsulant present on the first,second, third, and fourth light-emitting devices, wherein the phosphoremits a first color of light, the first light-emitting device and thesecond light-emitting device emit a second color of light, the thirdlight-emitting device and the fourth light-emitting device emit a thirdcolor of light, and the second color of light emitted from the firstlight-emitting device and the second color of light emitted from thesecond light-emitting device have different wavelengths.
 2. Thelight-emitting device package of claim 1, wherein the lead framecomprises: a first lead frame on which the first light-emitting deviceis mounted; a second lead frame on which the second light-emittingdevice is mounted; a third lead frame on which the third light-emittingdevice is mounted; a fourth lead frame on which the fourthlight-emitting device is mounted; and an insulator disposed between thefirst, second, third, and fourth lead frames.
 3. The light-emittingdevice package of claim 1, wherein the first light-emitting device andthe third light-emitting device are connected in series between a firstanode and a first cathode, and wherein the second light-emitting deviceand the fourth light-emitting device are connected in series between asecond anode and a second cathode.
 4. The light-emitting device packageof claim 3, wherein different color spaces are set according to voltagesapplied to the first anode and the second anode, respectively.
 5. Thelight-emitting device package of claim 4, wherein a first color space isset in response to an ON voltage being applied to the first anode and anOFF voltage being applied to the second anode.
 6. The light-emittingdevice package of claim 5, wherein a second color space is set inresponse to an OFF voltage being applied to the first anode and an ONvoltage being applied to the second anode, the second color space beingdifferent from the first color space.
 7. The light-emitting devicepackage of claim 6, wherein a third color space is set in response to anON voltage being applied to the first anode and an ON voltage beingapplied to the second anode.
 8. The light-emitting device package ofclaim 1, wherein the second color of light has a wavelength band betweena wavelength band of the first color of light and a wavelength band ofthe third color of light.
 9. The light-emitting device package of claim1, wherein the wavelength of the second color of light emitted from thefirst light-emitting device is shorter than the wavelength of the secondcolor of light emitted from the second light-emitting device.
 10. Thelight-emitting device package of claim 1, wherein the firstlight-emitting device and the third light-emitting device are includedin a first internal light-emitting device package, wherein the secondlight-emitting device and the fourth light-emitting device are includedin a second internal light-emitting device package, and wherein thelight-emitting device package further includes a partition wall locatedbetween the first and second internal light-emitting device packages.11. The light-emitting device package of claim 10, wherein the phosphorincludes a first phosphor disposed in the encapsulant in a region of thefirst internal light-emitting device package and a second phosphordisposed in the encapsulant in a region of the second internallight-emitting device package, and wherein the first phosphor and thesecond phosphor emit different wavelengths of the first color of light.12. The light-emitting device package of claim 11, wherein thewavelength of the second color of light emitted from the secondlight-emitting device is longer than the wavelength of the second colorof light emitted from the first light-emitting device, and wherein thewavelength of the first color of light emitted from the second phosphoris longer than the wavelength of the first color of light emitted fromthe first phosphor.
 13. The light-emitting device package of claim 11,wherein the wavelength of the second color of light emitted from thesecond light-emitting device is longer than the wavelength of the secondcolor of light emitted from the first light-emitting device, and whereina wavelength bandwidth of the first color of light emitted from thesecond phosphor is narrower than a wavelength bandwidth of the firstcolor of light emitted from the first phosphor.
 14. The light-emittingdevice package of claim 12, wherein the first color of light emittedfrom the second phosphor has a deeper color tone than a color tone ofthe first color of light emitted from the first phosphor.
 15. Thelight-emitting device package of claim 13, wherein the first color oflight emitted from the second phosphor has a deeper color tone than acolor tone of the first color of light emitted from the first phosphor.16. The light-emitting device package of claim 1, wherein the thirdlight-emitting device and the fourth light-emitting device emit thethird color of light having a same wavelength.
 17. The light-emittingdevice package of claim 1, wherein the third light-emitting device andthe fourth light-emitting device emit the third color of light havingdifferent wavelengths.
 18. An electronic device comprising: alight-emitting device package configured to output white light; and adriver configured to drive the light-emitting device package, whereinthe light-emitting device package comprises: a lead frame; a firstlight-emitting device mounted on the lead frame; a second light-emittingdevice mounted on the lead frame; a third light-emitting device mountedon the lead frame; a fourth light-emitting device mounted on the leadframe; and a phosphor contained in an encapsulant present on the first,second, third, and fourth light-emitting devices, the phosphorconfigured to emit a first color of light, wherein the firstlight-emitting device and the second light-emitting device areconfigured to emit different wavelengths of a second color of light, andthe third light-emitting device and the fourth light-emitting device areconfigured to emit a third color of light.
 19. The electronic device ofclaim 18, wherein the lead frame comprises: a first lead frame on whichthe first light-emitting device is mounted; a second lead frame on whichthe second light-emitting device is mounted; a third lead frame on whichthe third light-emitting device is mounted; a fourth lead frame on whichthe fourth light-emitting device is mounted; and an insulator disposedbetween each two adjacent frames among the first, second, third, andfourth lead frames.
 20. The electronic device of claim 18, wherein thedriver comprises: a first driving circuit configured to drive the firstlight-emitting device; a second driving circuit configured to drive thesecond light-emitting device; and a controller configured to control thedriving of each of the first light-emitting device and the secondlight-emitting device.
 21. The electronic device of claim 20, whereinthe controller controls the driving of each of the first light-emittingdevice and the second light-emitting device based on at least one ofuser setting information or content information.
 22. A light-emittingdevice package comprising: a lead frame; at least two light-emittingdevices mounted on the lead frame and configured to emit differentwavelengths of a same color of light; and a phosphor configured to emitlight having a color different from the color of light emitted from theat least two light-emitting devices.